The article shortly addresses these points: ... One unresolved question is whether such a plane would have windows or use video screens to give passengers a se

The article shortly addresses these points: ... One unresolved question is whether such a plane would have windows or use video screens to give passengers a sense of their surroundings. Another issue that has dogged such experiments in the past is how to handle sensations of movement. Because passengers would be sitting further out from the center of the aircraft, compared to the classic ‘tube and wings’ model, they would move further when the aircraft turns. Rival Boeing has put more weight on a potential cargo role.